Results 31 to 40 of about 6,363,211 (303)

Saline-Sodic Soil EC Retrieval Based on Box-Cox Transformation and Machine Learning

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Electrical conductivity (EC) is an important index of soil salinity level and an essential factor in judging whether improvement can be made and assessing the improvement, if any.
Xiaojie Li, Yishan Sun, Xiaopeng Chen, Yingye Li, Tao Jiang, Zhengwei Liang   +5 more
doaj   +1 more source

Spectral Characteristics of Biological Soil Crusts under the Different Types in the Water-Wind Erosion Crisscross Region on the Loess Plateau

, 2018
The study on spectral characteristics of biological soil crust in the water-wind erosion crisscross region in the Loess Plateau has important scientific value for the identification of biological soil crust based on remote sensing technology at regional ...
Sun, WY (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China., Zhang Yue, Mu Xing-min, Tian Yuan-sheng, Sun Wen-yi, Sun, WY (reprint author), Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China., Zhao Guang-ju, Gao Peng   +7 more
core   +1 more source

An Alternative Quality Control Technique for Mineral Chemistry Analysis of Portland Cement-Grade Limestone Using Shortwave Infrared Spectroscopy

Remote Sensing, 2016
Shortwave infrared (SWIR) spectroscopy can be applied directly to analyze the mineral chemistry of raw or geologic materials. It provides diagnostic spectral characteristics of the chemical composition of minerals, information that is invaluable for the ...
Nasrullah Zaini, Freek van der Meer, Frank van Ruitenbeek, Boudewijn de Smeth, Fadli Amri, Caroline Lievens   +5 more
doaj   +1 more source

Sum-Frequency Spectrum Phase Measurement of the Silica-Octadecyltrichlorosilane Interface and Measurement Accuracy Analysis

, 2021
Phase measurement sum-frequency vibration spectroscopy (SFG) can obtain molecular orientation information of the material surface, but there are still some key issues that remain unresolved, including experimental repeatability, experimental design, and ...
Li Yu-qiong, Liu Xiao-jie, Feng Ran-ran, Xu Shuai, Jin Gang   +4 more
core   +1 more source

Experimental Study on the Structure Characteristics of CO2 in Gas Hydrate by Solid-State Nuclear Magnetic Resonance and Raman Spectroscopy

, 2022
Natural gas hydrate is unconventional energy with huge energy and source potential. In 2017 and 2020, two exploratory trials of marine hydrate in the South China Sea were successful. The incident accelerated the development of China's natural gas hydrate
Chen Xiao-li, Yu Yi-song, Zhang Shao-hong, Chen Pei-li, Zhang Qing-zong, Mo Jia-mei, Fu Juan, Su Qiu-cheng   +7 more
core   +1 more source

Combining Dark Pixels and Spectral Characteristics for Thin Cloud Removal in High-Resolution Remote Sensing Images

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
High-resolution optical remote sensing satellites usually refers to Earth observation satellites carrying meter or submeter spatial resolution bands, which are capable of capturing more detailed features of the Earth’s surface.
Tao Jiang, Huanfeng Shen, Huifang Li, Liying Xu   +3 more
doaj   +1 more source

Video Spectral Methods and Tools for Monitoring of Controlled Parameters of Forest Fires and Oil Spill Accidents

Приборы и методы измерений, 2023
The main results of the creation of the domestic complex “Vizir” for measuring bidirectional spectropolarization reflection coefficients and brightness of natural and artificial objects were presented in the article.
A. S. Sizikov, Y. V. Belyaev, I. M. Tsykman, A. P. Popkov   +3 more
doaj   +1 more source

Nightside studies of coherent HF radar spectral width behaviour [PDF]

, 2002
A previous case study found a relationship between high spectral width measured by the CUTLASS Finland HF radar and elevated electron temperatures observed by the EISCAT and ESR incoherent scatter radars in the post-midnight sector of magnetic local time.
J. A. Davies, Davies, J.A., Eglitis, P., P. Eglitis (7605143), P. Eglitis, Woodfield, E.E., Lester, M., Lockwood, M., Lockwood, Mike, M. Lester, J. A. Davies (4412452), T. K. Yeoman (7601525), T. K. Yeoman, M. Lester (7589660), Davies, J. A., M. Lockwood, M. Lockwood (7612331), E. E. Woodfield (7590071), E. E. Woodfield, Yeoman, T. K., Yeoman, T.K., Woodfield, E. E.   +21 more
core   +2 more sources

OPTICAL PROPERTIES OF AMORPHOUS THIN FILMS OF SODIUM-TUNGSTEN OXIDE BRONZES

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2021
The spectral dependences were measured of the optical density of amorphous thin films of sodium-tungsten oxide bronze of the tetragonal structure and the composition Na0,3WO3, condensed on glass substrates, thermostated at temperatures of 373, 473 and ...
B.M. Khubolov
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source